Dark mode, call to NPPM_GETEDITORDEFAULTBACKGROUNDCOLOR gives incorrect color at init plug-in

[BdR76]

Description of the Issue

When set to dark mode, the call to NPPM_GETEDITORDEFAULTBACKGROUNDCOLOR gives incorrect color at init plug-in. I'm trying to find a way to detect if Notepad++ is or is not running in dark mode, in order to set the correct color scheme for my plug-in.

Notepad++ initialises the plug-in using the call to the Dll Export setInfo. When I use the api call NPPM_GETEDITORDEFAULTBACKGROUNDCOLOR at this moment the plug-in is initializing, then it always returns 16777215 (white) even when it's set to dark mode, so afaik that is incorrect. When I run the same api call later, after Notepad++ has started and is up and running, then it returns 4144959 (dark grey) which is correct.

Here's my code (it's C# btw)

        var test123 = (int)Win32.SendMessage(PluginBase.nppData._nppHandle, (uint)NppMsg.NPPM_GETEDITORDEFAULTBACKGROUNDCOLOR, 0, 0);
        if (test123 <= 4210752) // #404040 dark grey roughly
        {
            // dark mode
        }
        else
        {
            // not dark mode
        };

Am I using this api incorrectly? Or is it not returning the correct value at start-up?
Is there a way around this, or should I use a different api call to detect dark-mode?

Steps to Reproduce the Issue

1. set Notepad++ to dark mode and close
2. plug-in uses setInfo implementation
3. setInfo calls some plug-in initialization function
4. the initialization function calls NPPM_GETEDITORDEFAULTBACKGROUNDCOLOR
5. get the return value

Expected Behavior

For dark mode the return value should be 0x3F3F3F (4144959 = dark grey)

Actual Behavior

Return value is 0xFFFFFF (16777215 = white)

Debug Information

Notepad++ v8.1.9 (32-bit)
Build time : Oct 21 2021 - 23:32:04
Path : C:\Program Files (x86)\Notepad++\notepad++.exe
Command Line :
Admin mode : OFF
Local Conf mode : OFF
Cloud Config : OFF
OS Name : Windows 10 Home (64-bit)
OS Version : 2009
OS Build : 19042.1288
Current ANSI codepage : 1252
Plugins : ComparePlugin.dll CSVLint.dll mimeTools.dll NppConverter.dll NppExport.dll NppXmlTreeviewPlugin.dll RandomValuesNppPlugin.dll XMLTools.dll

[dail8859]

One recommendation is to wait for the NPPN_READY notification and see if it gives you the correct value.

[dail8859]

Closing issue. I'm assuming Notepad++ is not fully initialized yet during setInfo(), so NPPN_READY should suffice. Please let us know if it is not.